Clock



W. D. DAVIES.

CLOCK.

Patented Apr. 2, 1889.

UNITED STATES PATENT OFFICE.

WVALTER D. DAVIES, OF BROOKLYN, NE\V YORK, ASSIGNOR TO THE ANSO- -NIA CLOCK COMPANY, OF ANSONIA, CONNECTICUT.

CLOCK.

SPECIFICATION forming part of Letters Patent No. 400,753, dated April 2,1889.

Application filed October 19,1888. Serial No. 288,535. NomodeL) T all whom it may concern.-

Be it known that I, WALTER D. DAVIES, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Clocks, of which the following is a specification, reference being had to the accompanying drawings.

I will describe in detail a clock embodying my improvement and then point out the novel features in a claim.

In the accompanying drawings, Figure 1 is a rear elevation, partly in section and partly broken away to save space, of a clock embodying my improvement, the back plate of the movement-case being removed. Fig. 2 is a vertical section of certain parts of the same, taken on the line a: 00, Fig. 1. Fig. 3 is a ver-. tical section of the upper portion of a clock, the section being taken on the line y y, Fig. 1. Fig. 4 is a detail of the upper part of the clock, partly in section, showing a modification. Fig. 5 is a side view of the same.

Similar letters of reference designate corresponding parts in all the figures.

I have only illustrated such parts of the clock-movement as are essential to my improvement.

A designates the clock-case, in this instance shown as cylindrical.

B designates a mainspring, and B a pinion on the mainspring-arbor.

C designates an escapement-wheel, and D a verge co-operating with the escapementwheel.

E designates pillars extending upwardly above the clock-case A and secured thereto near their lower ends in any suitable manner-as, for instance, by screws. the pillars E are hollow, and at least one of them must be hollow.

Secured to the verge 1), near one of its ends, is a bent arm, F. WVhen the verge D is rocked by the escapement-wheel, the rocking motion will be imparted to the arm F. This motion is transmitted to a connecting-rod, G, which rod extends upwardly through one of the hollow posts or pillars E, and is connected near its lower end to the arm F. At its upper end the connecting-rod G is connected to an arm, II, near one end of the latter, as shown, by a loose connection. The arm H extends at ap- As shown, 4

proximately right angles to the connectingrod G, and through a horizontally-arranged cap or box, J, secured upon the upper end of the post or pillar E. Atits other end the arm H is rigidly secured in the example of my improvement shown in Figs. 1 and 3 to a rock shaft, I, journaled near one of its ends in suitable bearings in the cap or box J, and near its other end in a bearing in a cap or box, J similar to the cap or box J, and mounted upon the upper end of the other of the posts or pillars E.

Upon the rock-shaft I, and about midway in its length between the caps or boxes J J, is rigidly secured, nearone of its ends, a downwardly-extending arm, L. \Vhen the arm F is rocked by the verge D, motion is transmitted through the connecting-rod G and arm H to the rock-shaft 1, whereby a swinging movement is given to the arm L. The arms H L and the rock-shaft I constitute in effect a bell-crank lever. Suspended from the arm L, near its lower extremity, is a pendulum, P, which may be of any suitable construction, but 7 5 which I have chosen to illustrate as consisting of a figure suspended in aframe, R. The frame R is maintained upon the arm L by means of a hook, S, engaging an aperture, a, in the lower extremity of the arm L. Upon the hook S is a shank, 1), extending in this instance through cross-bars c c.

The cross-bars c c are provided near their ends with suitably-formed apertures, through which extend uprights d, comprised in the 8 5 frame R. The upper of the cross-bars, or c, is rigidly secured to the uprights d. The lower of the cross-bars, or c, is vertically movable. The lower portion of the shank bis screw. threaded and receives a hand-nut, e, which 0 hand-nut is arranged below the cross-bar 0. By rotating the hand-nut c, it, together with the cross-bar 0, may be raised and lowered, whereby the swing of the pendulum may be regulated, in order to regulate the clock.

In the example of my improvement shown in Figs. 4 and 5, instead of employing a rockshaft, 1, I employ a bar, I, which is similar to said rock-shaft, but which is secured rigidly near its ends in the caps or boxes J J. The 109 arm II in this example is unconnected with the bar I, but is extended through a suitably= formed aperture in the inner side of the cap or box J, and is then bent round in such manner as to form a loop, f, about the bar I. Below the loop f it is extended downwardly for a distance and then horizontallytoward the box or cap J, and thence upwardly, and is bent round to form a loop, f, about the bar 1, corresponding to the loop f. lVhen the portion of the arm which is within the cap or box J is rocked up and down by means of the c0nneoting-rod G, it will be quite clear that the portions of the rod I-l between the caps or boxes J J will be swung to and fro upon the bar I. In this example of my improvement the arm H and its extensions constitute a bell-crank lever, which is fuloruined upon the bar I. The hook Shere engages an offset or looped portion, g, on the lever.

the other arm of said bell-crank lever above 30 the clock-case, substantially as specified.

\VALTER D. DAVIES.

\Vitness es:

FREDK. HAYNES, ARTHUR H. GAMBLIN- 

